Closure



Nov. 20, 1928. 1,692,634

J. c. DOWEIKOY Y CLOSURE Filed Dec. 21, 1927 IN ENTOR f me: Dmrez' k0 AT'I'ORNEY Patented Nov. 20, 1928.

UNITED STAVTVESPATVENT. OFF

Jams o. nownmaornnoomiyn, NEW Yonxgaslsrcnon To. NATIONAL SEAL M- PAN-Y, me, or BRe0KLYN,.NEw Yonx, afoonronatrion OFNEW YORK.

CLOSURE.

Application filed necemlier 21 1027. Serial: no. 241502.

' container when the closure is aflixed' and locked in sealing position, even after repeated applications and removals.

The objects of my invention are, among other things, to provide anxi'mproved (:10

sure structure of this type of container and closure whereby a more perfect seal and reseal is secured for such improved closure; to provide a closure with a depending skirt por ti'on and a plurality of inwardly extending lips to engage with radially projectinglugs on the container in which the leading edges of the lip; portions shall beformed to engage with progressively increasing pressure the under surfaces of the lugs to draw downthe closure upon the rim of the container openings. Furthermore I also provide a novel and reinforced stop end for each of the to. coact with the lugs to limit the-rotation of the closure in the seating direction which stop end at the same time tends to draw down the cap of the closure upon the rim of the container opening with a distributed, substantially uniform pressure, thereby furnishing an effective closure seal which can be repeatedly used for rescaling the container opening after the closure has been initially removed.

A further feature is to reinforce each stop end by inwardly indenting its rear portion to form a more or less curved rib or brace which shall prevent any undue rotation of the closure beyond its predetermined closed position thereby rendering more effective the coaction between the stop ends and bottle lugs.

With the above and other objects in view,

my invention comprises the novel construc tion, combination and arrangement of parts hereinafter described and then particularly pointed out in the appended claims.

In the acompanying drawings, Fig. 1 is a perspective View of the improved upturned closure showing my invention;

Fig. 2 is a bottom plan view of the closure, the top of the container or bottle with its lugs being shown in' dotted lines;

ig. 3 is a section taken on the lines 3-3 of Fig. 1; and

Fig. 4 is an enlarged perspective view showing the details of the reinforced stop.

end. v

Similar numerals refer Referring to the drawings, the closure 5 proper is formed preferably of a resilient.

sheet-1netal, and comprises the circular top or cap 6 from which depends --the annular skirtz-portion 7 which is usually knurled. The. skirt 7 has a-series of spaced apart inturnedlips 8 segmental in shape and some: what longer than the therewith;coacting-lugs 9 formed on. the neck; 101 of the bottle as shown in Fig; 2. The leadingend ll of each 11p 8 is cut square and is adapted to initially engage the rounded ends of the; lugs 9 when.

the closure 5 is preliminarilyrotated toward the Fig. 2 lockingposition.

. The; stop ends of the lips 8 are; formed by bendingthe-following; ends of the lips 8 inwardily to form the therewith right-angled faces 12': and curved-braces13 integralwi-th the skirt 7 and lips 8, whichbraces 13; reinforce with a local rigiditythe adjacent arts sothat the stop. faces; 12: will; not yield in any direction whenthey come into coact igng engagement with the lugs9-as the closure 5 is rotated and broughtzto the locked position to similar parts throughout the several figures. Y

shown in Fig. 2. Suchbraces 13 areipreferably crimped by first ends of the lips 8 against the skirt 7 and then the instruck indentations 14 are punched from the outside into the overlapped or folded-over double thickness ofsheetmetal whereby such curved crimped braces 13 have imparted to them an exceptional rigidity to support the stop ends and faces 12 when the lugs 9 are pressed against the latter in rotating and locking the closure to the bottle.

The operation of my improved closure is substantially as follows: The closure 5 is set on thetop of the bottle neck 10 so that the lugs 9 are disposed between the several lips 8, the top or cap 6 resting on the rim-of the neck 10. Then the closure 5 is horizontally rotatedor twisted so that the leading ends 11 of the lips 8 engage the leading ends of the lugs 9. The continued rotation of the closure or cap causes the lips 8 to ride along the under surfaces of the-lugs 9 until thefaces 12 engage the leading ends of the lugs 9 Which stops the closure rotation. The curved double-thickness of the braces 13 prevents the faces 12 from yielding against any continued lapping the following.

rotation, and also prevents any local spreading of the skirt 7 which might allow the faces 12 to slip by their lugs 9 and so unseal the bottle. The effect of these curved crimed braces 13 is to produce a compound rigi ity for the following lip ends and. integral faces 12 as well as for the adjacent skirtportion sothat the closure 5 is effectually revented from further rotation. It is mani est that I have embodied in my improved closure certain structural features which add to the efiectiveness of the'seal under allconditions of use no matter what may be the size of the closure and irrespective of the thickness and resiliency of the sheet-metal used in its construction. a i I claim as my invention 1. In combination with a container having a lug, a closure having an inturned lip to engage said lug upon rotation of'the closure in one direction, and astop end to engage the lug formed with lug-engaging face and a V curved brace in transverse alinement with the ment with the face.

3. In combination with a container having a lug, a closure having an inturned lip to engage said lug upon rotation of in one direction, and a stop end to engage the lug formed with 111 -engaging face and a curved brace comprising an instruck indentalug upon rotation of the tion, said lip having a stop end to limit the rotation of the closure, and a supportin the closure tion of ddublc thickness crimped the following end of the lip in transverse alinement with the face. p g i 4. In combination with a container having a lug, a closure having an annular depending skirt and an mturned lip integral with the skirt to engage said lug upon rotation in one direction, and; a stop end to lock with said lug, said stop end comprising a flat face and an integral supporting curved brace of double thickness formed from the folded-over end of said lip and skirt.

5. In combination with a container having a lug, a closure having an annular depending skirt and an inturned lip integralwith the skirtto engage said lug upon rotation in one direction, and a stop end to lock with said lug, said stop end comprising a flat face and an integral supporting curved brace of double thickness formed from. the folded-over inwardlyindented end of said lip and skirt.

6. In combination with a container havin a lug, a closure having a lip to engage sai lug upon rotation of the closure in one direction, said lip having a stop end to limit the rotation of the closure, and a supporting brace for said stop end comprising a ,crimpe folded portion of thelip behind said stop end and integral therewith. V

.7. In combination with a container having a big, aclosure having a lip to engage said closure in one direcbrace for said stop end comprising a crimpe inwardly indented folded portion oi? the lip behind said stop end and integral therewith. JAMES C. DOWEIKO. 

